A clever combination of "token" and "engine", this name could suit many token/crypto based brands. Alternative could be read as "tok" + "engine", with "tok" standing for "theory of knowledge" or an equivalent acronym.
The word "tokengine" contains nine letters and three syllables. Leading companies using three syllable names include Toshiba, KFC and Armani.
Tokengine.com is a dot com domain. Dot com domains are the most sought after top-level-domain in the world, famously used by websites like youtube.com. Owning a dot com says that you own the word "tokengine" online.